HS30-H

Sorry, I don't have any other data other than my 'ass dyno' readings........ It was a long time ago.........

OK - since that is my picture, I had better tell what I know about the car and the engine ( butlersZ - I don't know where you got the pic from - but it was originally posted on this site in relation to one of the O.S. Giken threads ). I rode ( not drove ) in the car back in the mid 1980's. It was built by a garage called AUTO SELECT of Osaka, and was something of a street battle / 0-400m warrior. Many of these small tuning 'garagistes' were trying new things and testing them on the street at that time, and it was just around the period when proper FI was taking over from carburettors in these Japanese street-tuning 'wars'. Spec. on the engine was as follows: O.S. GIKEN TC24-B1 twin cam 24-valve crossflow head conversion. L28 block bored to 89mm ( approx. 3 litre capacity ). L28 Crank. F3 type FJ20 Con Rods. Forged FJ20 Turbo type pistons. 2mm metal head gasket. 9.0:1 compression ratio ( ! ). Hand fabricated 50.8mm equal-length tubular exhaust manifold. 89mm hand fabricated straight-through muffler system. Dual-layer Intercooler with 50mm piping. Twin KKK K26-3663G Turbines ( 'Formula One' spec ). Three 50mm OER blow-through type carburettors, with 6 sub-injectors in inlet manifold controlled by a Sanyo Kiki 'D-Fit' computer . Red line was 9000rpm. It was quite powerful, as far as I remember ( ). That was the best part of twenty years ago now.........

That picture was taken around 20 years ago, so it should be no surprise that it was running on carbs. butlersZ, your point was? Is this Show and Tell or Show and Ask?

That zhome.com article on the 'Macau GP 240Z' is long overdue an update. Lots of inaccuracies and speculation still remain in the article long after a little informed investigation helped to dispel a few myths.......... The front end on that car had nothing to do with Nissan.

Only in the USA and Canada.

You might well be in with a shot for the job of Top Gear's USA correspondent.

Thanks for the heads-up on the Taurus. I thought it was bull for a second there Sorry to punch below the belt on the spelling thing, but if you didn't make 'em then I wouldn't be able to use them as ammo to throw back at you, would I? Is the DB7 engine really two Taurus engines joined together? Wow. Did they use some kind of big welding jig to make that? RCNSC, You seem to be really well informed, and also to be a big BMW fan. In that case, what would your opinion on the Morgan Aero 8 be?

Depends what you mean by "hand built"........... I can tell you that the Vanquish line looked pretty damned close to hand-build status when I visited it just after the start of production. I've never seen anything like that on a 'normal' modern production line. You sound pretty sure of yourself though, so maybe what I saw was just a figment of my imagination. What's a "Tarus"?

I notice that amongst the posts on this thread there are a lot of negative comments about British cars. I think most of you are missing the point about the more recent series of Top Gear; they will trash anything that they see fit to trash, and that includes 'British' tin ( if they feel so inclined ). Its not just an anti-American bias. I don't think there are many British car enthusiasts who would disagree with you about Charlie Lucas and the indifferent nature of many British cars of the late Twentieth Century. We know all about that. Having said that, I can vouch for the fact that we often see the reverse ( relating to UK cars ) of what you seem to have grown up with in the USA: We in the UK have often made jokes at the expense of American iron. For the most part, your product is not very well suited to the environment here and the US auto manufacturers certainly don't make much effort to adapt the product to the market. General good sense: Buying an LHD version of a British car is not to be advised....... I think you'll find that the 'Export' versions are not quite as good as the RHD originals. And does the Focus SVT count as an American car???? Isn't that - in reality - a Ford Europe product ( and mainly developed in the UK? ). The 'original' Cobra? ( an AC Ace with an engine transplant )..... if the UK-made kit-car replica Cobras are copies of an 'American' car, then what does that make the original Cobra? Incidentally, that AC Ace that Carroll Shelby was sharp enough to pick out as a suitable recipient for the Ford small block had........... a transverse rear leaf spring arrangement........ Oh, and "hand built" stuff like Aston Martin doesn't count? I think you'll find they make plenty of them. If you want so-called low volume / specialist cars then there's plenty of that kind of manufacturer here in the UK ( Noble, Lotus, TVR, Caterham, Westfield, Rocket, etc etc ) and not a lot else, actually.......... You should not take Top Gear so seriously unless you fully understand the British wit. We get plenty wound up about it over here, but we do realise that its not really serious automotive journalism. If you have a Car & Driver TV show then that is promising; their magazine has a great heritage and a good name in the UK - so that's encouraging. Forrest - I agree with you about Best Motoring.

What's a "pedistol"? Actually Top Gear are pretty hard on any car they don't like, including many from the UK. You'll often see a difference of opinion amongst the presenters too. What you don't seem to understand is that Top Gear has gradually become more and more of a comedy entertainment show based around Clarkson's personality than anything else. They concentrate on making the show look good, and producing nice bite-size chunks that can be networked out around the world ( netting the production company a nice profit ) and turned into DVD and Video sales. They also want you to discuss it; it gives them free advertising. It's working isn't it? What ( serious? ) motoring-related entertainment shows along the lines of Top Gear do you have in the USA? Does any USA-based show give serious critique to new cars, or are they too scared to offend their advertisers? I know there are serious motoring magazines in the US, but I have not heard of any TV. Oh, and do you have any other good cars besides the Corvette? I'm all ears...........

I understand exactly what you are saying, but I personally know how much it costs to make stuff like the Quaife ATB in my home country ( and south east England at that, where costs are even higher than other regions ). I'm not saying that expensive is automatically good, or exotic is 'cool'. What you "value" it as is up to you, but what it costs to manufacture in real terms is what I'm talking about. If your US manufacturers would design and manufacture a unit, and accept re-makes for orders of 25pcs, then I'm sure you would not even be discussing the Quaife unit anyway. I am glad that you know how to spell QUAIFE. Most people don't seem to be able to spell it, let alone know how their ATB actually works..............

So you want the Quaife for around $500 then? You must be kidding. The Quaife ATB is manufactured here in England - as you know - and you must also surely be aware that Quaife let their USA distributors sell them to you at prices MUCH cheaper than we can buy them here in the UK. You're getting a hugely preferential price' date=' and you still want it cheaper (!). Have you checked out the $US to Pounds Sterling exchange rate recently? I can't see how Quaife can manufacture them here, ship them out to their US distributors ( paying US Import Duties and taxes along the way ) - who also presumably need to make a profit when they then sell them to you - and STILL make any money out of it. Unless Quaife set up a manufacturing plant in Cuba and smuggle them over to you, I don't see how $500 would be achievable.......... Unless you are saying that they are only [i']worth[/i] $500.........

ON3GO, I'm sure Chicago Tool have been around for a long time, but since the start of what exactly? My point being that I doubt that it would be possible to pinpoint the exact date, time and place of the "...birth of the machine tool." That's not the way I read it. 'EnonvativForce' said that they needed a figure of 5' date=' and my understanding is that they wanted 5 enquiries in order to ask OSG whether they could give them a price. I certainly do not think this means that OSG will repop a minimum order of 5 sets. So far, I see no directly-quotable answer from OSG. We should not confuse answers from 'EnonvativForce' as being answers from OSG themselves. As was established many years ago, the casting patterns are no longer in useable condition. Re-tooling would be a huge investment in terms of time / manpower and finance. A company like OSG needs to look at the future, as they are not big enough or rich enough to go back and recreate their past. Not to say that they are not proud of their heritage ( quite the opposite ) but what good would it do them at this point? They are very unlikely to make any money out of it, and would be in danger of making a fair loss I would have thought. Sure - it does not hurt to ask ( I asked them myself several times a few years back ) but I think very few people will put their money where their mouth is when it comes down to the bottom line. I think $20k is well short of the mark, and is another quote that has not come from OSG themselves either........

jvanen, As far as I can see, that figure of 5 kits was suggested by 'EnonvativForce' ( a company that re-sells / distributes OSG products in the USA? ) and not by O.S. GIKEN themselves. I think you'll find that they need more than 5 enquiries to get a firm price quotation. Nobody on this thread - or indeed any of the other threads started on other web forums on the same subject - has brought up the question of the Japanese market. Doesn't anybody imagine that Japanese enthusiasts, retailers and tuners have lobbied OSG in the past to re-make a kit? That's not just the Z crowd either - there are many different models ( Skylines for one comes to mind ) that modified L6 engines could be used on. Well, the answer is that they have been asking - but it still has not happened. The TC24-B1 never came 'stock' on any cars, so I don't see how your SCCA question is relevant. Its an aftermarket part. As for the TC24-B1 being the "....birth of the Skyline RB" I think you will find that the RB series had much more in common with the S20, which was in series production from 1969. The S20 influenced the FJ20 / FJ24 engines, which Nissan quotes as part of the RB family tree.

Chris, We might get into a philosophical argument about what actually constitutes a "Machine Tool" unless we are careful....... But since you said it, I think its up to YOU to tell ME why the USA is "The birthplace of the machine tool...". The USA might very well be where the machine tool grew up ( those Bridgeport and Cincinnatti mills I used to work on might be good testament to that ), and it might very well be where it was refined. But if I were you I wouldn't bet on knowing its birthplace. Don't get me wrong - I'm not trying to say that the machine tool was born in England ( although cities like Birmingham and Coventry might say different ). Its just that when I read anything that looks jingoistic on the web, it tends to ring alarm bells for me. Your quote did just that, especially since it was in the context of the O.S. GIKEN discussion, and you were suggesting that they cast and rough-machine some heads and then send them over to the USA for finishing in "The home of the machine tool". Sorry - but to me that reads only one way; plain disrespectful to O.S GIKEN and Japan.

Hi Speeder, Sure. Please do. I wish people would use the SEARCH function a little more before posting on this kind of topic. There's been a great amount of data posted and interesting conversation made about the Japanese aftermarket heads, and Nissan's own race option heads, on this site and others in the past. Seems we are doomed to repeat history; the first time as tragedy, the second time as farce.......... Alan T.

"The birthplace of the machine tool"? The USA? Oh, I get it - that's a JOKE, right?

I don't think I spotted the clothes hanger amongst Nissan's official tools I don't see any problem with using the standard Nissan chain tensioner system, and Kameari themselves still sell the standard Nissan parts for even very high powered engines. Nevertheless, they found that chain-whip caused problems with cam timing ( and even some related engine failures where valves touched pistons ) in very extreme situations. This is why they developed their new tensioner. Its NOT meant to be a 'bling-bling' part, and I really hope that everybody understands this.

The adjustable part of the tensioner is attached to the head, as you can see. If you are taking the head off, then you can't adjust the tensioner to hold the chain tight. So the short answer is 'no'. In my opinion, this could go two ways. If you want to take the cylinder head off the block, you either go the whole hog and take off the front cover and sump ( or at least loosen the sump bolts ) or you take great care to hold the timing chain and not let it slip off the crank gear. There's no spring-loaded plunger anymore, as its replaced with a free-rolling gear. That gives nothing to push down against with your block of wood or purpose-made chain tensioner tool. However, it also means that there's no plunger trying to pop out of its housing and push the chain with it...... I'm sure it would be possible to pull the head and not let the chain slip, but honestly speaking I think its more difficult with the Kameari setup - and I'd rather pull the front cover and do it properly. Of course, that's only my opinion. In the normal run of events, I don't usually plan to be pulling heads off all that often.........

Pics of installed setup: http://alansphotos.fotopic.net/p3712799.html http://alansphotos.fotopic.net/p3712800.html http://alansphotos.fotopic.net/p3712823.html Notes: Stock ( mechanical ) fuel pump cannot be used if the KAMEARI Twin Idler tensioner is installed Some fettling of the head casting may be necessary - especially around the inside radius of the timing chain inspection cover recess and fuel pump mounting recess. Each individual head will be different in this respect........

Let's see, three months. January, February and March then? The depths of the British winter. Are you serious? You expect us to drive our cars around in that rock salt they spread all over the roads....!? There are a few around ( OK - not really that many, but a few ), and they'll probably start coming out of hibernation over the next few weeks. Keep your eyes open. There are a few suitable events for them coming up soon too. And you honestly never heard of Vauxhall? One of the oldest motor car manufacturing names in the world? Now part of GM? Swallowed up in Europe by Opel? They've been and gone and you never even noticed. Very sad. Whereabouts are you "just out of London"?

They claim that the part is safe up to an estimated 13,000 rpm without failure, based on calculation rather than practical experimentation. They have never suggested that an L-series 6 will ever rev anywhere near that.